v3.26.1
Expense Example - Morgan Stanley U.S. Government Money Market Trust - Classes R and S - U.S. Government Money Market Trust
Jan. 31, 2026
USD ($)
R  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 37
Expense Example, with Redemption, 3 Years 116
Expense Example, with Redemption, 5 Years 202
Expense Example, with Redemption, 10 Years 456
S  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 37
Expense Example, with Redemption, 3 Years 116
Expense Example, with Redemption, 5 Years 202
Expense Example, with Redemption, 10 Years $ 456